[UPDATE] Pete Hines has now offered a little more insight on the Fallout 4 vs. Skyrim comparisons. He said on Twitter that he was comparing Fallout 4 and Skyrim over the same period of time and that Fallout has in fact sold more copies than Skyrim.

Appearing on the Kinda Funny Gamecast, Bethesda marketing executive Pete Hines said, "Fallout 4 has gotta be the most successful game we've ever launched in our company's history. More than Skyrim, in terms of what we did."

Also during the interview, Hines responded to the critique that Fallout 4 did not do enough to set itself apart from its predecessors. He agreed that the game shares commonalities with Fallout 3, but said the nature of the beast with sequels is the balancing act between preserving the core formula and pushing things forward. Sony's Uncharted series feels the same, Hines said.

"If you played Uncharted 4 and that was your first game, I think you have a very different reaction to what that game is than if, like me, you played 1, 2, and 3," he explained. "Because Uncharted 4 is more of 1, 2, and 3."

Finally, Hines offered a high-level tease for what Fallout 4 and Skyrim developer Bethesda Game Studios is going to make next. "Whether it's Fallout or Elder Scrolls or whatever they're gonna do next, I think their mantra is always we really gotta step up our game," he said.